12A46

Metric Roller Chain Sprocket

Item #100966378

25.02 mm Minimum Bore

260.97 mm Maximum Bore

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Product Details

Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at an angle to keyseat.

Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Bores are concentric to pitch line, minimizing run out
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain

Specifications

Bore Range [Min]	25.02 mm
Pitch Diameter	279.2 mm
No. of Teeth	46
Martin No.	12A46
Series	A
Length Through Bore	11.1 mm
Pitch Diameter [Min]	279.2 mm
Hardened Teeth	Without Hardened Teeth
Pitch Root Diameter	267.1 mm
Hub Projection	N/A
Chain No.	12B, 12B-1
Caliper Diameter	267.09 mm
Root Diameter	267.1 mm
Bore Range [Max]	260.97 mm
Sprocket Style	A
Inch/Metric	Metric
Outside Dia. [Min]	290.9 mm
Material	Steel
No. of Strands Across	1
Single Strand Tooth Thickness	11.1 mm
Bore Style	Minimum Bore
Pin Diameter	12.065 mm
Hub Dia.	N/A
Bore Type	Reborable
Hub Length Thru	N/A
Outside Dia.	290.9 mm
Chain Pitch	19.05 mm
Family Name	No. 12 - 19.050 mm Pitch - Single - A
Width Across Teeth	11.1 mm
Weight	50.13 LB
EAN or UPC	697950401003